The diaphragm filter press, also known as the diaphragm filter press, is a filter press with a layer of elastic membrane between the filter plate and the filter cloth. In the process of use, when the feeding is finished, the high-pressure fluid or gas medium can be injected into the diaphragm plate. At this time, the whole diaphragm will bulge and press the filter cake, so as to realize the further dehydration of the filter cake, which is commonly referred to as press filtration.

Diaphragm filter press has the advantages of high pressing pressure, good corrosion resistance, convenient maintenance, safety and reliability. It is the choice of customers in metallurgy, gas, papermaking, coking, pharmaceutical, food, brewing, fine chemical and other industries.

Membrane filter press has been widely used in various fields requiring solid-liquid separation. The diaphragm filter press is considered as the replacement and upgrading equipment of the ordinary van filter press.

The diaphragm filter press has shown good results in the treatment capacity per unit area, reducing the moisture content of the filter cake, and adaptability to the properties of the treated materials.

The main difference between the diaphragm filter press and the ordinary van filter press is that two pieces of elastic membranes are added on both sides of the filter plate. During the operation, when the feeding is finished, the high-pressure fluid medium can be injected into the diaphragm plate. At this time, the whole diaphragm will bulge and press the filter cake, so as to realize the further dehydration of the filter cake, that is, squeezing filtration.